{"product_id":"honeywel-50136386-250-fan-alarm-assembly","title":"Honeywel  50136386-250 Fan Alarm Assembly","description":"\u003cp\u003eConfigured for continuous monitoring of fan performance in industrial control systems, the \u003cstrong\u003eHoneywell 50136386-250\u003c\/strong\u003e (\u003cstrong\u003e50136386-250\u003c\/strong\u003e Fan Alarm Assembly) provides direct physical\/electrical execution of fault detection routines to prevent thermal deterioration. This hardware unit tracks localized ventilation states and translates tachometer or current variances into discrete alarm vectors. It acts as an independent watchdog loop to manage cabinet-level thermal diagnostics, signaling external supervisors through direct circuit state changes when convective airflow bounds drop below nominal baselines.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e50136386-250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e80 mm x 40 mm x 25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eDetermined by specific rack distribution backplane voltages\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Product Type\u003c\/td\u003e\n\u003ctd\u003eFan Alarm Assembly Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm Output Interface\u003c\/td\u003e\n\u003ctd\u003eRelay contact activation or digital signal transition path\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Connectors\u003c\/td\u003e\n\u003ctd\u003eIntegrated electrical terminals for power inputs and alarm loops\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Form Factor\u003c\/td\u003e\n\u003ctd\u003eInternal control cabinet or direct fan housing installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation Parameters\u003c\/h3\u003e\n\u003cp\u003eThe 50136386-250 incorporates specialized electrical barriers to isolate field-side monitoring zones from the internal processing core of the distributed control system (DCS). By enforcing strict channel-to-channel isolation limits across its interface matrix, the assembly blocks transient voltage surges and high-frequency inductive feedback loops generated by electric motor windings from migrating into adjacent data buses. This topology limits common-mode noise propagation, ensuring that localized thermal monitoring loops remain stable and that the physical signaling outputs deliver steady state logic parameters to the upstream network interface without data corruption.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does a channel-to-channel isolation failure inside this module affect the overall DCS bus architecture?\u003c\/p\u003e\n\u003cp\u003eA: An isolation breakdown permits common-mode voltage transients from the fan motor supply lines to pass into the low-voltage processing plane. This cross-coupling induces register bit flips, drops local communication lines, and forces the host controller node into an uncommanded initialization sequence or hardware lockout state.\u003c\/p\u003e\n\u003cp\u003eQ: Can the alarm output terminals be configured to switch inductive AC or high-potential DC lines directly?\u003c\/p\u003e\n\u003cp\u003eA: The onboard relay contact is specified for standard low-power signaling interlocks. Switching highly inductive loads or high-potential DC circuits causes contact degradation and arcing; external interposing relays must be utilized if the loop drives large notification elements or high-current fan braking circuits.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45052832743539,"sku":"50136386-250","price":410.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-05-28_09-04-42.png?v=1779933340","url":"https:\/\/www.dcssupplier.com\/products\/honeywel-50136386-250-fan-alarm-assembly","provider":"DcsSupplier Limited","version":"1.0","type":"link"}